<!doctype html>
<html>
<head>
<meta charset=utf-8 />
<title>内容交互元素</title>
<style type="text/css">
body{
	padding:5px;
	font-size:12px
	}
summary{
	font-weight:bold	
		}
</style>
</head>
<body>
<details open="open">
<summary>页面说明</summary>
本页面生成于2014/10/22
</details>
</body>
</html>